Genesis 42:33-34

“Then the man who is governor of the land told us, ‘This is how I will find out if you are honest men. Leave one of your brothers here with me, and take grain for your starving families and go on home. But you must bring your youngest brother back to me. Then I will know you are honest men and not spies. Then I will give you back your brother, and you may trade freely in the land.’”